Shrub rose plant named &#39;baicream&#39;

ABSTRACT

A new and distinct variety of Landscape Shrub rose plant is provided which abundantly forms on a recurrent basis creamy white double blossoms with a hint of pink that commonly have a diameter of approximately 10 cm. The buds are slender in configuration and lemon yellow in coloration. The plant exhibits a vigorous, upright and bushy growth habit, and forms attractive foliage that commonly possesses a tint of red-purple when young and assumes a semi-glossy medium green coloration when mature. Very good resistance to Blackspot and Powdery Mildew is displayed. The foliage coloration contrasts nicely with the creamy white blossom coloration. The new variety is particularly well suited for growing as attractive ornamentation in parks and gardens.

BOTANICAL/COMMERCIAL CLASSIFICATION

[0001]Rosa hybrida/Landscape Shrub Rose Plant

VARIETAL DENOMINATION

[0002] cv. ‘BAlcream’

SUMMARY OF THE INVENTION

[0003] The new variety of Rosa hybrida Landscape Shrub rose plant wascreated at Yamhill, Oreg., U.S.A., during 1992 by artificial pollinationwherein two parents were crossed which previously had been studied inthe hope that they would contribute the desired characteristics. Thefemale parent (i.e., the seed parent) was the ‘AUSmas’ variety(non-patented in the United States). The ‘AUSmas’ variety is marketedunder the GRAHAM THOMAS trademark. The male parent (i.e., the pollenparent) was the ‘BUCbi’ variety (U.S. Plant Pat. No. 4,225). The ‘BUCbi’variety is marketed under the CAREFREE BEAUTY trademark. The parentageof the new variety can be summarized as follows:

‘AUSmas’×‘BUCbi’.

[0004] The seeds resulting from the above pollination were sown andplants were obtained which were physically and biologically differentfrom each other. Selective study resulted in the identification of asingle plant of the new variety having the distinctive ornamentalcharacteristics hereafter described.

[0005] It was found that the new variety of the present invention:

[0006] (a) exhibits a vigorous, upright and bushy growth habit,

[0007] (b) forms slender lemon yellow buds,

[0008] (c) abundantly forms on a recurrent basis attractive creamy whitedouble blossoms with a hint of pink commonly having a diameter ofapproximately 10 cm,

[0009] (c) forms attractive foliage that commonly possesses a tint ofred-purple when young and assumes a semi-glossy medium green colorationwhen mature,

[0010] (d) displays very good resistance to Blackspot and PowderyMildew, and

[0011] (e) is particularly well suited for growing as attractiveornamentation in parks and gardens.

[0012] Strong canes are formed by the new variety.

[0013] The new variety of the present invention can be readilydistinguished from its parental varieties. More specifically, the‘AUSmas’ variety forms rich deep yellow blossoms having approximately 35petals, and the ‘BUCbi’ variety forms light rose blossoms havingapproximately 15 to 20 petals.

[0014] The new variety well meets the needs of the horticulturalindustry and can be grown to advantage in the landscape where attractiveornamentation is desired. The plant can be grown as a specimen or as amass planting.

[0015] The new variety has been found to undergo asexual propagation bybudding on an understock and by the rooting of cuttings. Asexualpropagation by budding onto ‘Dr. Huey’ rootstock (non-patented in theUnited States) first conducted during April 1993 at Yamhill, Oreg.,U.S.A., and subsequently by the rooting of cuttings at Phoenix, Ariz.,U.S.A., and elsewhere, has shown that the characteristics of the newvariety are stable and are strictly transmissible by such asexualpropagation from one generation to another.

[0016] Initially the new plant was designated 99R508. The new varietysubsequently has been named the ‘BAIcream’ variety, and is beingmarketed while using the MACY'S PRIDE trademark.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

[0017] The accompanying photographs show as nearly true as it isreasonably possible to make the same in a color illustrations of thischaracter, typical specimens of the new variety. The rose plants of thenew variety had been propagated by the rooting of cuttings, wereapproximately two years of age, and were being grown outdoors during theseasons of 1999 and 2000 at St. Paul, Minn., U.S.A.

[0018]FIG. 1 illustrates typical buds, creamy white blossoms and foliageof the new variety during the summer. The attractive dense semi-glossymedium green foliage is shown.

[0019]FIG. 2 illustrates a closer view of creamy white blossoms whenfully open and buds of the new variety.

DETAILED DESCRIPTION

[0020] The chart used in the identification of the colors is that of TheRoyal Horticultural Society (R.H.S. Colour Chart). Common color termsare to be accorded their ordinary dictionary significance. Thedescription is based on the observation of two and three year-old plantswhile growing on their own roots outdoors during June and July 2001 atSt. Paul, Minn., U.S.A., and one year-old plants growing outdoors ontheir own roots during October 2001 at Phoenix, Ariz., U.S.A.

[0021] Botanical classification: Rosa hybrida, var. ‘BAIcream”.

[0022] Class: Landscape Shrub Rose.

[0023] Plant:

[0024]Height.—approximately 1.5 m on average at the end of the growingseason.

[0025]Width.—approximately 1.5 m on average at the end of the growingseason.

[0026]Habit.—upright and bushy.

[0027] Branches:

[0028]Color.—young stems: near Yellow-Green Group 144B with somehighlights of Red Group 53B. — adult wood: Yellow-Green Group 144A.

[0029]Thorns.—size: commonly approximately 0.5 to 0.75 cm in length onaverage. — color: commonly between Greyed-Purple Group 184B.

[0030] Leaves:

[0031]Stipules.—generally parallel with the auricle facing outward.

[0032]Petioles.—upper surface: Yellow-Green Group 146A — under surface:Yellow-Green Group 146C.

[0033]Leaflets.—number: 3, 5, and 7 (most often) on mature branches. —shape: ovate with a rounded base and an acuminate tip. — serration:finely serrate. — texture: leathery. — general appearance: dense,semi-glossy aspect, and medium green in coloration. — color (youngfoliage): upper surface: Yellow-Green Group 146B with highlights ofRed-Purple Group 59B. under surface: Yellow-Green Group 147A withhighlights of Red-Purple Group 59A — color (adult foliage): uppersurface: commonly between Green Group 137A and Yellow-Green Group 147B.under surface: Green Group 138B with some presence of Green Group 139C.

[0034] Inflorescence:

[0035]Number of flowers.—commonly in clusters of three per stem.

[0036]Peduncle.—with some prickles, medium green, commonly Green Group143C in coloration, and the length is approximately 6 cm on average.

[0037]Sepals.—upper surface: between Green Group 143A and 143B incoloration. — under surface: Green Group 143D with areas of White Group155D, and some pubescence. — size: approximately 3 cm in length withsome extensions.

[0038]Buds.—shape: slender. — size: medium. — length: approximately 3.5cm on average. — diameter: approximately 1.75 cm on average. — color:upper surface: commonly between Yellow-Green Group 150D and Yellow-GreenGroup 154D with highlights of Red-Purple Group 58B. under surface:commonly between Green-Yellow Group 1C and Yellow-Green Group 154C.

[0039]Flower.—shape: double. — diameter: approximately 10 cm on average.— color (when opening begins): upper surface: Yellow-Green Group 154Cand 154D. under surface: Green-Yellow Group 1D with highlights ofGreen-Yellow Group 1B. — color (when blooming): upper surface: betweenYellow Group 2D and Yellow Group 4D with highlights of Red-Purple Group62C. under surface: Green-Yellow Group 1D with highlights of YellowGroup 4C and Red-Purple Group 63D. — color (end of blooming): uppersurface: White Group 155B with highlights of Yellow Group 4D. — undersurface: White Group 155A with highlights of Yellow Group 2D. — basalpetal spot: White Group 155D. — fragrance: slight musk. — lastingquality: the blossoms commonly last approximately 3 to 5 days from budon the plant on average depending upon the temperature, and the level ofsunlight. — petal number: approximately 22 on average under normalgrowing conditions. — petal shape: wedge-shaped commonly with a curledapex when fully open. — petal drop: the petals drop easily. stamennumber: approximately 75 on average. — anthers: Greyed-Orange Group 163Bin coloration. — filaments: Yellow Group 6A in coloration. — pistils:approximately 26 on average. — stigmas: Yellow Group 13B in coloration.— styles: Yellow-Green Group 154A in coloration. — receptacle: separateand free. — hips: ovoid in configuration. — seeds: Greyed-Orange Group164B with highlights of Greyed-Orange Group 166C in coloration, rugoseat the apex with villose hairs, and oval to round in shape.

[0040] Development:

[0041]Vegetation.—vigorous.

[0042]Blooming.—abundant at first bloom and then recurrent throughoutthe growing season.

[0043]Resistance to diseases.—very good resistance to Blackspot, andPowdery Mildew.

[0044]Aptitude to bear fruit.—good.

[0045]Hardiness zone.—Zone Nos. 4 to 7.

We claim:
 1. A new and distinct variety of Landscape Shrub rose plantcharacterized by the following combination of characteristics: (a)exhibits a vigorous, upright and bushy growth habit, (b) abundantlyforms on a recurrent basis attractive creamy-white double blossoms witha hint of pink commonly having a diameter of approximately 10 cm, (c)forms attractive foliage that commonly possesses a tint of red-purplewhen young and assumes a semi-glossy medium green coloration whenmature, (d) displays very good resistance to Blackspot and PowderyMildew, and (e) is particularly well suited for growing as attractiveornamentation in parks and gardens; substantially as herein shown anddescribed.